The adventure – which airs on September 10th at 7.15pm – focuses on Amy and Rory, and is essentially this year’s “Doctor-lite” episode, featuring minimal work from Matt Smith. The BBC lists the episode thus:
Amy is trapped in a quarantine facility for victims of an alien plague – a plague that will kill the Doctor in a day.
The Doctor can use the TARDIS to smash through time and break in, but then Rory is on his own. He must find Amy and bring her back to the TARDIS before the alien doctors can administer their medicine.
Rory is about to encounter a very different side to his wife. Can he rescue Amy before she is killed by kindness?
Staunton appeared notably in the Harry Potter movie Harry Potter and the Order of the Phoenix, as well as Harry Potter and the Deathly Hallows – Part 1. She also appeared in Nanny McPhee and Much Ado About Nothing.
The actress is listed on the Radio Times website as “Voice of Interface – Imelda Staunton”, indicating that she is playing a similar guest role as Michael Sheen earlier in the season who voiced House in The Doctor’s Wife.